Table 6.

Isolation indices for different barriers between Nasonia vitripennis wasps from different strains but same microhabitat, and wasps from different strains and different microhabitats

Origin of couples	Barrier
	Ecological	Sexual	Postmating	Total
Same strains vs. diff. strains from the same ms-clusters (k = 3)	0	0.075*	0.054	0.128
Same strains vs. diff. strains from the same ms-clusters (k = 5)	0	0.12*	0.217*	0.328
Same strains vs. diff. strains from the same microhabitat	0	0.033	0.262*	0.259
Diff. strains within the same ms-cluster (k = 3) vs. strains from diff. clusters	0	− 0.048	0.302*	0.258
Diff. strains within the same ms-cluster (k = 5) vs. strains from diff. clusters	0	− 0.093	0.132*	0.039
Diff. strains within the same habitat vs. strains from strains from diff. habitats	0.458*	0.006	0.084	0.525

Data were calculated according to Sobel and Chen [139] using olfactometer data for ecological isolation, data on the occurrence of copulations for sexual isolation, and data on the number of F1-female offspring for postmating isolation. Significant barriers are in bold